CVE-2018-0171 Details

CVE-2018-0171

Published: 2018-03-28
Last Modified: 2020-09-04
CVE Author: NIST National Vulnerability Database
CVE Assigner: psirt@cisco.com
Summary

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition, or to execute arbitrary code on an affected device. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted Smart Install message to an affected device on TCP port 4786. A successful exploit could allow the attacker to cause a buffer overflow on the affected device, which could have the following impacts: Triggering a reload of the device, Allowing the attacker to execute arbitrary code on the device, Causing an indefinite loop on the affected device that triggers a watchdog crash. Cisco Bug IDs: CSCvg76186.

Analysis
Common Vulnerability Score System v2.0
Severity High
Base Score 10/10
Exploit Score 10/10
Access Vector Network
Access Complexity Low
Authentication None
Impact Score 10/10
Confidentiality Impact Complete
Availability Impact Complete
Integrity Impact Complete
Vector String AV:N/AC:L/Au:N/C:C/I:C/A:C
Common Vulnerability Score System v3.1
Severity Critical
Base Score 9.8/10
Exploit Score 3.9/10
Access Vector Network
Access Complexity Low
Privileges Required None
Impact Score 5.9/10
Confidentiality Impact High
Availability Impact High
Integrity Impact High
Scope Unchanged
User Interaction None
Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:o:cisco:ios:15.2\(5\)e:*:*:*:*:*:*:* Yes - -
References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-
http://www.securitytracker.com/id/1040580
http://www.securityfocus.com/bid/103538
https://www.darkreading.com/perimeter/attackers-exploit-cisco-switch-issue-as-vendor-war
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04

CVE ID
CVE-2018-0171
Published
2018-03-28
Modified
2020-09-04
CVSSv2.0
High
CVSSv3.1
Critical
PCI Compliance
Fail
US-CERT Alert
No
CWE
CWE-787

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